Jaw-grtrsheb



R. C. NEWHOUSE.

JAW CRUSHER. APPLICATION FILED FEB. 26, |916.

1,309,807. I A PatentedJuIy15,l919.

lll/111111 IIIII III /6 THE COLUMBIA PLANODRAPH co., WASHINGTON. D. c.

-moving l in engagement with this mechanism.

' jaw moving`l mechanism. i

BAY o. ivnwiions'n, or MIL'wAnKigir-z,

MANUFACTURING DELAWARE.

coiirAitY, For MILWAUKEE, wisconsin,

spciiic'antn cf Letters Patent.

wisconsin, virssiorivoit/ 'ro Anais-cristianas.

A icorneoiaa'rroii or Application filed February 2G, 1916. Serial 1\To.l81,04=8.l

T0 all 'whom t may concern.' y

Be it known that I, RAY C. Niiwiionsina citizen of the United States, residing at Milwaukee, in the county ofMilwaukee and State of Wisconsin, have invented'a certain new and useful Improvement in Jaw-Crushv ers', of whichtheY following is a specification.

This invention relates to improvements in the construction of crushers and is especially applicable to j'aw crush'ers of massive design and large capacity.'

An. objectof the invention is to'provide a jaw Crusher which is simple :in construction, efficient in operation, and may be read'- ily assembled and disassembled. One of the more specific objects is to provide means for permitting ready assembling and removal of the actuating mechanismsof'jaw crushers having` very heavy crusher elements. other specific object is to provide means for permittingready removal of the wearing liners of jaw crush'ers; A further specific object isto provide a crusher structure which will eectively withstand the severest stra-ins to which it may besubjected The first of the above mentioned specific objects is attained by 'suspend-ing the mov; able jaw from a pivot w ich is so lo cated with referencev to' the center of Y gravity of the movableujaw, that this jaw will automatically swing to a position permitting free' vertical removal of the jaw mechanism upon release o the means which normally maintainsthe jaw his feature of applicants invention is of con`- siderable importance in very large crushers where the enormous weighty ofthe movable jaw' would otherwise .necessitate Y the usev o special apparat-nein order to move the jaw to a position permitting'free removal of the `been embodied in a- Crusher having anl inlet vopeninga as large'as 7 ft. long by'5 ft. 6 in. wide, such avcrusher weighing over 500,000 ounds. The second of thespeci-ic objects cure Vthe jaw liners in place, of several etachable sections, and providing l,means for pei'rmittingA ready assembling and v disassemblng ci lthe bolts. Yhis second feature ipermits removal ciy the liners; without curedt'o theA side frames v9 anc- The featura'lias v necessitating displacement ofV the massive crusher jaws.y The third specific object is accomplished Iby providingv ay stiffening` web member parallel to and. adjacent the movable .jaw member, and connecting the side frames ofthe Crusher; This latter feature permits construction of a frame having requisite strength, a-t'minimum'` 'costi 'Y A clear conception ofan embodiment of the invention may be had by referring to the ldrawing'accompanying and forming -a part of this specification i'nwhic'h like referieatenteu July i5,l 1919.

encejcharacters designate the saine or similar parts in the various views.

Figure e1 is atop view of a Crusher ernbody-ing vthe present; invention.

. Fig. Q is aV transverse vertical section through the Crusher disclosed in Fig. l...

Fig. Sis an enlarged part sectionalv view of one ofthe sectionallining securingbolts. The jaw cruslier disclosed in the drawing comprises essentially a stationary .jaw l; a' movable-)aw 2, side' frames 9, a rear actuating: mechanism for the The stationary jaw Vl isi seh'as a crushing surface providedfwith liners l1, l2, facing'the movable jaw'; '.The movable jaw 2 mounted in movable jaw.-

lis suspended from la pivot 3 bearings 30 in the side fra-mes crushing surface yprovided with liners'k l1, l2, facing' the stationaryI jaw l.. The pivot 3 and stationary jaw l are located on the same side of the through the center of vgravity of the' jaw 2. The eXtreme-endportions of the side frames 9 are secured to a rear frame 21 which serves toffspace' and properly stien the adjacent portions -of'theframes 9. The frames 9 are als'osecured to each otherV by means of tie rods, 18 and a .stifl'ening fwebmember 10. The web member 10 is located adj acent and .parallel tothe movable jaw 2,' and is of considerable widthv whereby-relative shifting of the adjacent portions of theframes 9 is prevented. If necessary, severalweb members Y10 may bei provided.

i The mechanism for'v movin comprises essentially a main shaft 7 having eccentricend portions mounted in bearings 29 of the sideframes 9, a pitman 6 sus.- pended' froni the shaft 7, and toggle; elements e?. 5.;. The fronttogglje element .has

9, and a y vertical Y plane passing ,9; the jawf i held iiig the pitnian 6 c in the openingy 22 its one end bearing against the lower rear and has its opposite portion of the jawV 2, end engaging a earing in the lowerYfro-nt engaginga bearsecured to the opposite overhanging end the'reoit.V The movable held in engagement with the toggle element 4 andthe el ements 4,' 51,-'are heldy in 'position jaw 2 vand passingthrough open.- ings in the rearflr'ame 21. The rods 13 are nuts and `collars provided with adjustable iid the fram'e21,

held in `-place by means "of `single-piece through bolts'14v of ordinary construction.

he-lowei"liners 12 of the jaws '1,1 v2, are

in j place byv means' offsectional -b'olt's '16.

tion 24, section 26, seefFig, 3; ofthe sections 24, 25, liavescrew threads' which "engage the threaded interior of the sleeve section 26. The sleeve section 26 is f provided ,with "transverse through holes, which withV the bolt assembled, register with notches inth'eadjacent ends of the sections 24, 2 5; Pins 27'passed through these registering holes and notches' serve to'lock the sleeve section'26to the 'adjacent sections' 24,

le jaws y1,2,"fare providedwith cored openings v15, 17, adjacent vthefbolts 16, which permit ready assembling and disassembling j of thel sectional-bolts.

During `the" normalfoperation' ofY the Y cruSher, the xmain vshaft 7 is rotated by means 45 4offpower applied' to the ropeV wheel 28, causlto VinoveV back and forth vertical direction whereby the toggle elements'4, 5, arev moved. The motion of the toggle elements 4,5, vis transmitted` to the movable jaw 2 which'fsw'ings back and forth relativejto' the Ijaw 1 about thelpivot' 3j "The'material to becrushed isv fed intov the inlet VAopening `at the upper end ofthe 'crushing space between thef jaws l, 2,'5 'and passes" downwardly through the crushing chamber, the'crushed material" be'- ing eventually delivered through the discharge' opening at the lower en d of thejaws.

If it is desired to disassemblethe Crusher, an 'elen'ient'l` having a hooked end' and shown in dot anddashflines `in Fig/2, is first passed through the opening 20'in the rearframe 21 Vand the hookedY end isiiiserted at the lower end of the pitman 61""This'element 31 is thenfsec'ured The rear toggle Y -ary jaw l, as indicated indot and 'awr 2 vis normally i i jaws 1, 2.

to the frame 2,1 by means of a nut and washer,` as disclosed, ward'swiiiging of the lower extremity of thepitnian Y6. The nuts and collars 23- on the rods 13 are'then removed, causing 'the movable jaw 2 to swing toward the .-statioiidash lines When the jaw 2 has swung into with the jaw 1, the toggle eledrop out of place.

in the ligure.

to drop out 2y may then be removed if readily assembled byreversing the series of 5 stepsnecessaryV for disas'seinbling. The rods 13 besides serving asl means forl assembling the Crusher, normally coact with the springs 19an'd'collars 23 to resiliently'retain the j aw 2: against'the' toggle element 4.1 It should be noted pivot 3 and the stationary jaw 1 on the same sideof the center of gravity of the'inovable jaw 2, and the provision of suilicientspace that the location ofthe between the lower extremities of the jaws v v 2, causes the'ja'w g suiliciently tolpermit` free verticali'emoval of thetoggle elements, when'the rod released.v

relatively `close toeach other" at their lower extremitiesjthe lower' bolts .-16 if formediu 'one piece, could not through the crushing chamber. these bolts infsectioii's 24, 25,"connected by the removable. sleeves 26, thel bolts`16fma' be readily removed .without displacing the 27 is permitted throught' the 15, 17,'formedin the jaws 1,

cored f openings members! 10 adjacent and l'parallel to vthe movable jaw `'that the jaws 1,2, are I Y l05 be removed eiidwise By forming Access to thesleeves 25v and pins and `"directly connecting the f`= sideframes 9, relative shifting of the-side st ucture the rigidity of thel 125 and together 'with the web 10- provide a fra-me whichfis vsaid securing means including means for permitting endwise removal of said securing means without displacing either f of said jaws.

2. In combination, a pair of spaced jaws, a liner, and a bolt for securing said liner to one of said jaws, said bolt being axially removable transversely of said jaws an eing of greater length than the adjacent distance between said jaws,

and said securing means including means for permitting endwise removal of said bolt without displacing either of said jaws.

3. ln a Crusher, a frame, suspended from said frame, a toggle element for moving said jaw, means for Vactuating said toggle element, frame bracing means between said jaw and said actuating means and above said element, and means for maintaining engagement between said jaw and said element, the space above said engagement maintaining means and below said toggle element being vacant and said jaw being formed to automatically release said element when said engagement maintaining means is released. r

4;. ln a Crusher, a frame, a jaw inovably suspended from said frame and having a pivot at its upper end, a toggle element for moving said jaw, means for actuating sai toggle element, frame bracing means etween said jaw and said actuating means and above said element, and means for maintaining engagement between said jaw and a jaw inovably Copies of this patent may 'he obtained for five cents each, by addressing the said element, the space above said engagement maintaining means and below said toggle element being vacant and the center of gravity of said jaw being so located that said jaw will swing away from said element and release the saine when said engagement maintaining means is released.

5. In combination, a movable jaw having an upper pivot located at one side of a vertical plane passing through the center of gravity of said jaw, a pitman having an upper pivot located on the same side relatively to a vertical plane passing through its center of gravity as the/pivot of said movable jaw, a frame, mechanism connecting said movable jaw and said pitman, other mechanism connecting said pitman and said frame,` and means for maintaining engagement between said jaw, pitman, frame and said mechanisms, said mechanisms being freely vertically removable when said engagement-maintaining means is removed.

6. In combination, a movable jaw member having an upper of a vertical plane passing through the center of gravity of said member, a pitman member having an upper pivot located on the same side relatively to a vertical plane passing through its center of gravity as the pivot of said jaw member, a frame inember, a toggle member connecting said pitman member and said frame member, a second toggle member connecting said pitmany and said jaw member, means for maintaining engagement between all of said members, and means for maintaining engagement between said pitman member, frame member and the intervening toggle member when said engagement maintaining means is removed whereby sa`d second toggle member is freely vertically removable.

In testimony whereof, the signature of the inventor is affixed hereto.

RAY C. NEWHOUSE.

Commissioner of Patents,

Washington, D. C.

pivot located at one sidev 

